Final answer:
Rheumatic fever is an inflammatory condition that can develop as a complication of untreated or inadequately treated streptococcal throat infection, specifically caused by the group A Streptococcus bacteria.
Step-by-step explanation:
The five minor manifestations of rheumatic fever include:
1. Arthralgia: Joint pain without evidence of arthritis.
2. Fever: Elevated body temperature, although fever alone is not specific to rheumatic fever.
3. Elevated Acute Phase Reactants: Increased levels of acute phase reactants, such as erythrocyte sedimentation rate (ESR) or C-reactive protein (CRP), indicate inflammation in the body.
4. Prolonged PR Interval: Abnormality in the electrocardiogram (ECG) showing a prolonged PR interval, which reflects delayed electrical conduction between the atria and ventricles.
5. Elevated ESR or CRP: Elevated levels of erythrocyte sedimentation rate (ESR) or C-reactive protein (CRP), indicating inflammation.
It's important to note that the major criteria involve specific manifestations in the heart, joints, skin, and central nervous system. The presence of certain combinations of major and minor criteria is used to diagnose rheumatic fever. If rheumatic fever is suspected, prompt medical evaluation and treatment are essential to prevent complications.